The best way to understand labor markets is to look at real-world data, not just theoretical models.
理解劳动力市场的最佳方式是观察现实数据，而不仅仅是理论模型。
伟大的科学需要聪明的头脑和谦逊的心。
The purpose of life is not to be happy. It is to be useful, to be honorable, to be compassionate, to have it make some difference that you have lived and lived well.
翻译：刚健笃实，发出辉煌灿烂的光芒，每天都要增进新德。